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They checked the subjects’ health problems and gave advice. They made record of the subjects’ quality and length of sleep. They exposed the subjects to different kinds of viruses. They gave medicine to the subjects who had caught cold.
music but also some other subjects some other subjects as well as music music as well as some other subjects some other subjects and music
They checked the subjects’ health problems and gave advice. They made record of the subjects’ quality and length of sleep. They exposed the subjects to different kinds of viruses. They gave medicine to the subjects who had caught col
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They checked the subjects’ health problems and gave advice. They made record of the subjects’ quality and length of sleep. They exposed the subjects to different kinds of viruses. They gave medicine to the subjects who had caught cold.
They checked the subjects’health problems and gave advice. They made record of the subjects’quality and length of sleep. They exposed the subjects to different kinds of viruses. They gave medicine to the subjects who had caught col
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